#233F6A#233F6A
#233F6A is a dark, moderate blue. Relative luminance 0.050; OKLCH L 36.9% C 0.082 H 258.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #233F6A |
|---|---|
| RGB | rgb(35, 63, 106) |
| HSL | hsl(216, 50%, 28%) |
| HSV | hsv(216, 67%, 42%) |
| CMYK | cmyk(67%, 40.6%, 0%, 58.4%) |
| CIE-LAB | lab(26.60, 4.62, -28.27) |
| CIE-LCH | lch(26.60, 28.64, 279.27°) |
| OKLab | oklab(36.85% -0.016 -0.0803) |
| OKLCH | oklch(36.85% 0.082 258.7) |
| XYZ | xyz(5.0712, 4.9525, 14.3215) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 3.48
Twilight Blue
#0A437A
ΔE00 3.81
Darkish Blue
#014182
ΔE00 4.21
Prussian Blue
#004577
ΔE00 4.92
Marine
#042E60
ΔE00 5.44
Cobalt (survey)
#1E488F
ΔE00 5.60
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233F6A #6A4E23
analogous
#23636A #233F6A #2A236A
triadic
#233F6A #6A233F #3F6A23
tetradic
#233F6A #6A2363 #6A4E23 #236A2A
square
#233F6A #6A2363 #6A4E23 #236A2A
split-complementary
#233F6A #6A2A23 #636A23
monochromatic
#080E17 #14243C #233F6A #325A98 #4677C2
Accessibility & contrast
On white
10.55
#233F6A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#233F6A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233F6A
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233F6A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233F6A | 1.00 | 10.55 | 1.99 | 10.55 |
| #FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2C436C
Deuteranopia (green-blind)
#223C69
Tritanopia (blue-blind)
#00494F
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #233f6a; /* rgb */ color: rgb(35, 63, 106); /* oklch */ color: oklch(36.9% 0.082 258.7);
Tailwind
colors: {
custom: {
50: '#667395',
500: '#233f6a',
950: '#000000',
},
}SCSS
$custom: #233f6a; $custom-light: #667395; $custom-dark: #000000;
JSON
{
"hex": "#233f6a",
"rgb": {
"r": 35,
"g": 63,
"b": 106
},
"hsl": {
"h": 216.338,
"s": 50.355,
"l": 27.647
},
"oklch": {
"l": 0.36851,
"c": 0.0819,
"h": 258.7
},
"luminance": 0.04953
}Semantic roles & 50–950 ramp
primary
#233F6A
secondary
#9D7D4B
accent
#A34EDA
background
#F6F6F9
surface
#EBECF1
border
#C6C7CB
text
#06080D
muted
#7A7B7E